as i put together some parts for a friend recently, this might be of use for you also:
ASUS P8P67 WS REVOLUTION LGA 1155 Intel P67 / NVIDIA NF200http://www.newegg.com/Product/Product.a ... 813131714R
Corsair CWCH80 Hydro H80 CPU Liquid Coolerhttp://www.compusa.com/applications/Sea ... &CatId=499
Mushkin Enhanced Blackline 16GB (2 x 8GB)http://www.newegg.com/Product/Product.a ... 6820226316
2x ZOTAC ZT-50103-10P GeForce GTX 580 3GBhttp://www.compusa.com/applications/Sea ... CatId=3669
SilverStone Fortress Series FT02S-W Silver Aluminum / Steel ATX 220http://www.newegg.com/Product/Product.a ... 6811163183
COUGAR CMX 1000 COUGAR-1000CMX 1000Whttp://www.compusa.com/applications/Sea ... CatId=2535
if you add an i7-2600k, this is still well below 2000 euros. because of the nf200 chip, the board delivers 8x speed to all pcie slots, also the slot arrangement would allow a third card (or a fourth, with the bigger silverstone case). btw, regarding the case, i didn't go for anything else - maybe silverstone tj07 (same size) or tj11 (bigger) - best airflow...